Needle hub



FIG. 1 is a top perspective view of a needle hub embodying our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevation view thereof;

FIG. 5 is an opposite side elevation view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a rear elevation view thereof.

The broken lines in the drawings represent portions of the needle hub that form no part of the claimed design. 

CLAIM The ornamental design for a needle hub, as shown and described. 